| 图片 | 名称 | 品牌 | 简介 | 价格 | 
| 
       | 
    
       量程
 +1 ~ +19.999 rpm
 
精度
 ±0.02% 测量值 
   | 
    |||
| 
       | 
    
       testo 470转速仪套装:包括仪器箱,适配器,测量头,表面测速盘。   | 
    |||
| 
       | 
    
       量程
 +1 to +99999 rpm
 
分辨率
0.01 rpm (+1 to +99.99 rpm)
0.1 rpm (+100 to +999.9 rpm)
1 rpm (+1000 to +99999 rpm) 
   | 
    
  |